Modules

Edit content layout from within the edit form.

Layout builder can't show a live preview with this, so it may not make sense to enable it.

Allows setting attributes on layout sections.

Code snippets with highlighted syntax.

CKEditor 4.

Use this on Drupal 10 for backwards compatibility.

CKEditor version 5. The main content editor for Drupal.

Added to Drupal 9.3.

Embed html content in CKEditor5.

This is for html snippets, not embedded entities.

Moved to Embedded Content.

Embed blocks with {block:PLUGIN_ID}.

Config UI for CKEditor Templates (v4) a

Render oEmbed content via URL in editor.

Worked out of the box with a codepen link.

To change the url, highlight the embed and click the button again.